Back support cushion



FIG. 1 is a front elevational view of a back support cushion showing mynew design

FIG. 2 is a right side perspective view thereof, the left sideperspective view being a mirror image; and,

FIG. 3 is a right side view thereof, the rear being a flat surface.

My back support cushion is characterized by an elevated elongated convexshaped middle section with two adjacent elongated flat surfacedstructures, and one convoluted section centrally positioned at the topend.

The ornamental design for a back support cushion, as shown anddescribed.